HM5164165 Series, HM5165165 Series
EDO Page Mode Cycle
Parameter
Symbol
EDO page mode cycle time
EDO page mode RAS pulse width
Access time from CAS precharge
RAS hold time from CAS precharge
Output data hold time from CAS low
CAS hold time referred OE
CAS to OE setup time
Read command hold time from
CAS precharge
t HPC
t RASP
t CPA
t CPRH
t DOH
t COL
t COP
t RCHC
Write pulse width during CAS precharge tWPE
OE precharge time
t OEP
HM5164165/HM5165165
-5
-6
Min Max Min Max Unit
20
—
25
—
ns
—
100000 —
100000 ns
—
28
—
35
ns
28
—
35
—
ns
3
—
3
—
ns
8
—
10
—
ns
5
—
5
—
ns
28
—
35
—
ns
8
—
10
—
ns
8
—
10
—
ns
Notes
20
16
9, 17, 29
9, 22
EDO Page Mode Read-Modify-Write Cycle
Parameter
Symbol
EDO page mode read-modify-write cycle tHPRWC
time
WE delay time from CAS precharge
t CPW
HM5164165/HM5165165
-5
-6
Min Max Min Max
57
—
68
—
45
—
54
—
Unit
ns
ns
Notes
14, 29
Refresh (HM5164165 Series)
Parameter
Refresh period
Refresh period (L-version)
Symbol
t REF
t REF
Max
64
128
Unit
Note
ms
8192 cycles
ms
8192 cycles
15